Power

The power item shows the battery levels in your menu bar, plus battery history, energy mode and other information in the dropdown menu.

Customize battery states #

If on, it allows completely different menu bar icons and details to be shown for when your battery is draining, charging or charged. This lets you do things like adding a time until drained to your menu bar while your battery is draining, but hide it while your Mac is plugged into main power.

Apple Bluetooth keyboards, mice and trackpads #

iStat Menus can display the battery level for most Apple wireless keyboards, mice and trackpads. These are shown in the battery menu.